God had let all the souls from hell out, like Belphegor, a demon, who decided to possess your now-dead friend Jack. Belphegor wanted to help you all put the souls back, as it was bad for ‘business’. Which is what left you on babysitting duty, while Sam, Dean, Castiel and Rowena were busy elsewhere. You and Belphegor sat in the back of Dean’s Impala.